Definition
A TI allowance (short for Tenant Improvement Allowance) is money a landlord provides to a tenant—typically expressed as $ per square foot—to help pay for buildout costs needed to occupy the space (e.g., walls, flooring, lighting, HVAC modifications, electrical/data, plumbing, finishes, and code compliance).
How It Works
TI is part of the overall lease “package,†alongside base rent, free rent, lease term, and expense structure (gross vs. NNN). Economically, TI is a landlord concession: it increases the landlord’s upfront cash outlay and reduces the lease’s net effective rent.
Common structures
- Turnkey buildout: landlord delivers finished space; TI may be implicit in the deal.
- Allowance reimbursement: tenant builds; landlord reimburses up to a cap after invoices/lien waivers.
- Work letter scope: lease defines what qualifies, approvals, and timelines.
- Amortized TI: landlord fronts TI, then recovers cost through higher rent over the term.
Why It Matters
TI allowance often determines whether a tenant can realistically move forward, especially for office, retail, and medical users where buildouts are expensive. For owners and investors, TI is a major driver of lease-up cost, cash flow timing, and return on invested capital.
Investor Uses
- Underwriting leasing costs: model TI + leasing commissions + downtime to get to stabilized NOI.
- Comparing deal terms: higher rent with high TI can be worse than lower rent with low TI.
- Capital planning: TI is often funded from reserves, TI/LC budgets, or a lender-controlled account.
- Tenant quality signal: credit tenants may demand higher TI but provide better income durability.
How TI Affects Net Effective Rent
TI reduces the landlord’s economics because it is effectively prepaid rent (a concession). A simple way to see it: spread TI over the lease term to estimate the “rent equivalent†cost.
Rule-of-thumb approach
- TI rent-equivalent ($/SF/yr) ≈ TI ($/SF) ÷ Lease term (years)
- Net Effective Rent ≈ Face Rent − (TI rent-equivalent) − (free rent impact) − (other concessions)
Example
A tenant signs a 5-year lease at $36.00/SF/yr with a $25/SF TI allowance (ignoring other concessions for simplicity).
- TI rent-equivalent ≈ 25 ÷ 5 = $5.00/SF/yr
- Net effective rent (rough) ≈ 36 − 5 = $31.00/SF/yr
Two deals with the same face rent can have very different economics if TI and other concessions differ.
What Drives TI Levels
- Use type: medical/lab and high-finish retail typically require higher TI than standard office.
- Condition of space: shell space vs. second-generation space changes buildout scope.
- Market competition: higher vacancy often means higher TI to win tenants.
- Lease term: longer terms can support larger TI because costs are spread over more years.
- Tenant credit: strong tenants can negotiate better TI; weak credit may require less TI or more security.
Common Pitfalls
- Confusing TI with CapEx: some items benefit the building long-term; classify correctly for underwriting.
- Ignoring timing: TI is usually paid early; it can create a cash flow dip even if rents look strong.
- Overlooking scope limits: “eligible costs†and approvals can cap what TI actually covers.
- Not budgeting soft costs: architecture, permits, and project management can be significant.
- Missing re-tenanting risk: high TI today may repeat at rollover if the space is specialized.